the GetFLdatelist function does not take into account for the month of Feburary. If you use Feb as a start date the results look like this:
12015-02-01 00:00:00.0002015-02-28 00:00:00.00022015
22015-03-01 00:00:00.0002015-03-28 00:00:00.00032015
32015-04-01...